What i do consider trading based on chance, which is no different from gambling, is when some one with no knowledge enters a futures market, place orders and deep in their head, they don't know exactly what they are doing, in-fact, they within themselves know that they are just guessing the market and hoping they are right with their guess, this is what i call trading based on chance., which equals to gambling.
You are right, mate, trading is not really gambling, but only the trader can choose for themselves how they want to carry out their trading, and for a trader that handles trading as if it's gambling, there is a very low chance of making successful trades, and it can get to a point when they will also be chasing losses like gamblers do. This is very common among some newbie futures traders and some newbie forex traders. It's obvious that one can minimise their risk in trading, but only if they are really skilled and know how to use the Trading tools. They can also stop losses and take profits, but in gambling, once you wager an amount, you can't stop losses and take a profit.